How to hit the darts correctly?
Hello, dear readers and guests of the site "Notatki electrician".
Today, I will tell you about those how to properly throw darts.
On the right, 70% of pardons during the installation of electrical wiring are the fault of the gallery itself. Aje vsi Vee, maybe, chuli is so strong, that "Electrics is the science of contacts." One of my readers added to his firmness that “If you need it, you can’t. If it is not required - wine є.
Most often, problems with electricity are blamed on poor contact (otherwise, it’s weak) in good boxes or electrical outlets ( , ), as well as through the rewiring of the electrical wiring. The remaining reason is the lack of hard modern electrical appliances (kettle, micro-furnace oven, cooking surface, refrigerator, empty).
How to hit the darts correctly?
V_dpovіmo on tse wider nutrition. How to correctly zadnuvati droti, sob garniy and akіsny contact. At the same time, the following wires are most often heard:
- twisting
- denunciation
- zvaryuvannya
- soldering
- screw-ups
- boltovі z'єdnannya
- self-tightening (WAGO)
And now let's look at the skin look of the z'ednannya.
Twisting
Twisting is the simplest and widest type of cable connection. We won’t take anything from the head, but we’ll move to the normative document. Clause 2.1.21 of Chapter 2 clearly states that:
PUE, clause 2.1.21. Z'єdnannya, vіdgaluzhennya and kіnets lived wires and cables zdіysnyuvatisya for additional pressing, zvaryuvannya, soldering or stiskіv (screwed, bolted thinly) vydpovіdno to chinnyh іnstruktsіy, zatverzhenih at the established order.
In this rank, zgіdno z PUE - PIECE OF THE FENCE!
Tsomu є logical explanation. For an hour of operation, through a change in temperature and a linear expansion in the twist, there is a gap between the wires that are connected. Vidpovidno, moves the transitional contact, starts to heat up, oxidizes and as a result arises.
denunciation
Crimping - the core of wires and cables using the method of stamping with a good sleeve for an additional special tool (press-clips). The Danish way of concluding is one of the most important and the best, which is consistent with the normative documents.
How to robiti correctly pressurized? For whom we need:
- good sleeve
- correctly select the sleeve for the inner diameter (for which there are special catalogs and instructions, or you can consult in the store)
- special tool - press pliers
Stages of work:
- znimaєmo іzolyatsіyu z drota on dozhinі sleeves (wykorosovuyuchi special or mounting lower)
- place the darts in the middle of the sleeve (you can twist it in the front)
- squeezed by special press-clips
- I agree with you
For successful insulated sleeves (DSI), I zastosovuyu.
For more repercussions, I have such a hydraulic press. I will write a detailed article about the new one - subscribe to the newsletter.
Zvaryuvannya
Zvaryuvannya - tse z'єdnannya lived wires and cables by the method of contact heating of їkh kіntsі by an electrode (vugіlny) until the contact point (bag) is established. Denmark is one of the most advanced and the best methods, which can support normative documents, but will also require the same skills to work in the field.
How to properly brew darts? For whom we need:
- power transformer (pressure not less than 1 kW, output voltage up to 24 V)
- carbon electrode
- special flux
- eyepieces for zvaryuvannya
- shkiryan mittens for brewing
Stages of work:
- robimo twisting
- near the electrode's sinking, the flux is thickened and our twist is lowered, gently pressing it to the electrode
- turn on the starter transformer at the tether
- ends of our twisting to be fused into a “bag” (contact point)
- after hardening I solder the input of the electrode
- otrimana "bag" is cleaned in the flux with a metal shield
- covered with varnish
- I agree with you
Approximately so.
Yak bachite, come out mayzhe cіlіsny provіd, tobto. the smallest transitional contact.
For the sake of the experiment, you can try to simulate the contact with various methods of connecting wires and reconsider what has been said.
Soldering
Soldering - the core of wires and cables with melted solder. Tsej sposіb z'єdnanny vіdpovіdaє vymog normativnyh dokumentіv, аlе require novichok novice roboti. Soldering guarantees long-term contact with good conductivity. Ale її zastosuvannya is separated through a mechanical or thermal injection.
Read the article about those who need uniqueness.
How to properly solder darts? For whom we need:
- tin-lead solder (POS)
- flux - rosin
- penzlik for applying flux to the core
- emery paper
- soldering iron
Stages of work:
- znimaєmo іzolyatsіyu z drota 40-50 (mm)
- with an emery paper, we protect the vein of the droti to a blisk
- choose the type of building (behind the table below)
- soldering iron soldering iron tip
- grієmo twisting
- after hardening the soldering, wash the soldering place with alcohol
- I agree with you
Axis butt stock z'ednannya kіlkoh drotіv soldering.
Soldering of wires and cables from midi. Ale, with the use of special solders, it is possible to solder lived wires and cables made of aluminum.
Gvinto_ z'ednannya
WAGO terminal blocks are produced in a number of series and variants of vikonan: the number of cores, which are connected from 2 to 8, with a retina from 0.75 to 4 sq. mm.
Some Vago clamps (2273-244 series) have a special contact paste, which helps to oxidize aluminum conductors. For the help of such clamps, you can live from different materials, for example, copper and aluminum.
And do you think how much WAGO clamps are worth?
In this article, we have learned how to correctly close the wires of the electrical wiring. At the next article, I will tell you about.
P.S. Before all the wires, wires and cables must be installed seriously, even if you have to lay down all the electrical wiring of your apartment, house or object.
